Remove the LAN IP address if user has cleared value
Remove the LAN IP address if user has cleared value

Ticket #654

dennypage/pfsense,pfsense/pfsense,jxmx/pfsense,ptorsten/pfsense,phil-davis/pfsense,dennypage/pfsense,jxmx/pfsense,dennypage/pfsense,ptorsten/pfsense,ch1c4um/pfsense,NOYB/pfsense,BlackstarGroup/pfsense,jxmx/pfsense,brunostein/pfsense,brunostein/pfsense,ch1c4um/pfsense,NewEraCracker/pfsense,pfsense/pfsense,BlackstarGroup/pfsense,ch1c4um/pfsense,NOYB/pfsense,ptorsten/pfsense,pfsense/pfsense,ch1c4um/pfsense,phil-davis/pfsense,phil-davis/pfsense,pfsense/pfsense,brunostein/pfsense,NOYB/pfsense,phil-davis/pfsense,BlackstarGroup/pfsense,dennypage/pfsense,BlackstarGroup/pfsense,NewEraCracker/pfsense,NewEraCracker/pfsense,NewEraCracker/pfsense